The anonymity issue goes both ways, though for my part I haven’t seen any cases of harassment towards judges in previous jams. The only thing I can think of is one case where a judge wasn’t filling out the Judge’s Preference score for most of the games, and even then that was just pointing that out, nothing further. If there have been more serious cases that I’ve missed then sure, I can see why anonymity was chosen, but I would hope that this community as a whole is far too level-headed for that to happen.
Although I will say that this year, even with the anonymity, the style of writing does sometimes give the author away 